On the Logos 5 new features web page there is an illustration of the new Clause Search. Unfortunately it doesn't work as shown.
The illustration shows the search as 'subject:God verb:to love' but this returns only two hits and does not include any from the illustration. To get these results the search has to be 'subject:God the Father verb:to love'
Unfortunate illustration on the web page aside, I would suggest the results of these searches are not what would be expected. I would have expected 'subject:God' to return many more hits than 'subject:God the Father' but to include all of these hits. In other words, the results of 'subject:God the Father' would be a subset of 'subject:God' (At present they appear to be two unrelated searches.) Some clarification from a Logos person would be appreciated.
Let me also mention that in searching the forums before posting this I notice that the forum search page does not (yet) include Logos 5 in the dropdown of forum titles. (Indeed the list does not really correspond to the forums that are presently available, with some missing and other listed that no longer exist.)